Comparison

OBDII Trouble Codes vs Cones Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OBDII Trouble Codes

Access a comprehensive offline database of over 18,500 diagnostic trouble codes for cars. Simply enter a fault code to get detailed descriptions without needing an internet connection or car model selection.

Highlights
  • Offline OBD2/EOBD code database
  • Over 18,500 error descriptions
  • No internet connection required
  • Simple fault code entry
  • Supports generic and manufacturer-specific codes
  • Copy and paste error descriptions
Features
Read full description

This app is the most complete offline OBD2 (EOBD) diagnostic trouble code definitions database. It contains more than 18500 error descriptions. It is the most full database in market. Very simple to use! You don't even have to select your car model. Just enter your fault code and app will show you all supported descriptions. No Internet connection needed, no longer spend hours to search for single code description, looking at check engine light. If you have usb, bluetooth or WiFi OBDII code reader (ELM327, PLX Kiwi or any other) you need this app for code description because most of code scanners does not contain full DTC (diagnostic trouble code) database and displays only meaningfull numbers. Be prepared for any troubles wherever you are! You can select and copy error description with simple long press on text, and then paste it in SMS, e-mail or wherever you want! If your car supports OBD II or EOBD, then you can already use almost 5000 generic OBDII codes. These codes are from PowerTrain series (P0XXX, P2XXX, P34XX), Body Series (B0XXX), Chassis series (C0XXX), Network series (U0XXX, U2XXX, U3XXX). Also there is a list of more than 13500 additional manufacturer specific codes. Supported manufacturers with specific codes: Acura Alfa Romeo BMW Chrysler / Dodge / Jeep Citroen / Peugeot Daewoo Fiat Ford Geo GM (Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac) Honda Hyundai Infinity Isuzu Jaguar Kia Lamborghini Land Rover Lexus Lincoln Mazda Mercedes Mercury Mini Mitsubishi Nissan Oldsmobile Opel / Vauxhall Plymouth Porsche Renault (DF codes) Saab Saturn Scion Subaru Suzuki Toyota Volskwagen Audi Group Volvo Note that it is impossible to create complete OBD DTC database. Manufacturers adding new codes and changing old ones. So if you cannot find your code or if you think that some code not correct anymore, please write us!

About

Cones Calculator

This tool calculates flat pattern layouts for various conical shapes, including truncated, multi-level, eccentric, and tori cones. It provides essential development dimensions for engineers and fabricators, simplifying complex layout tasks and reducing errors.

Highlights
  • Flat pattern layouts for conical shapes
  • Truncated cone calculations
  • Multi-level cone layouts
  • Eccentric cone layouts
  • Tori cone calculations
  • Development radius and angle generation
Features
Read full description

Cones Calculator – Flat Pattern Layouts for All Conical Shapes The Cones Calculator App is a powerful tool for engineers, fabricators, and workshop professionals to calculate flat pattern layouts for all types of cones and conical shapes. Whether you are working on pressure vessels, heat exchangers, storage tanks, or piping systems, this app simplifies the process and saves time while reducing fabrication errors. Key Features & Layout Types: Truncated Cone (Half Cone): Calculate layouts for full cones, half cones, or truncated cones. Enter small & large diameters and height to get development radius, angles, and cord lengths. Ideal for concentric conical hoppers. Multi-Level Truncated Cones: Divide large cones into multiple levels when sheet size is limited. Each level can be laid out individually, then joined via welding. Input large & small diameter, cone height, and number of levels. Eccentric Cones: Calculate layouts for eccentric cones using the 24-part method, with top and bottom markings for accurate fabrication. Multi-Level Eccentric Cones: For large eccentric cones, divide them into multiple levels and generate precise layouts for each part. Input large & small diameter, height, and number of levels. Tori Cones (Knuckle Cones): Generate layouts for tori cones with knuckle at the large end or knuckle at both ends. Input large & small diameters, knuckle radius, and straight face for flat pattern development. Why Use Cones Calculator: Recommended to use mean dimensions for ready-to-use fabrication layouts. Generates accurate development radius, angles, and cord lengths instantly. Ideal for daily fabrication tasks and complex conical shape layouts. Helps engineers, fitters, and contractors save time and avoid errors. Who Can Benefit: Perfect for: Fabrication Engineers & Fitters Production & Design Engineers Workshop Supervisors & Fabrication Contractors Piping Engineers & Process Equipment Manufacturers Pressure Vessel, Heat Exchanger, and Storage Tank Fabricators. Applications: Concentric Full Cone, Half Cone, and Truncated Cones Multi-Level Cones – for large-size cone fabrication Eccentric Cones – widely used in pressure vessels & hoppers Tori Cones – knuckle at large end or both ends Daily Fabrication & Layout – saves time, reduces mistakes. With Cones Calculator, layout complex conical shapes quickly, accurately, and efficiently, directly from your device. Whether you’re in the workshop, office, or on-site, this app provides ready-to-use fabrication layouts for all your engineering needs.

Screenshots

OBDII Trouble Codes3 screens
Cones Calculator4 screens

Verdict

The call

The clearest difference is update cadence: OBDII Trouble Codes at every 25 months against Cones Calculator's every 73 months. OBDII Trouble Codes also leads on iOS requirement (13.0 vs 18.0). Cones Calculator's advantage is price ($2.99 vs $3.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

OBDII Trouble Codes costs $3.99 and Cones Calculator $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

OBDII Trouble Codes ships an update every 25 months, Cones Calculator every 73 months. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 7 level
OBDII Trouble Codes versus Cones Calculator: the parameters behind the verdict, then further details
ParameterOBDII Trouble CodesCones Calculator
Price$3.99$2.99 — better
Rating—1.0 (1 ratings) — better
Positive reviews21.4% of reviews—
Number of ratings—1 — better
Update frequencyEvery 25 months — betterEvery 73 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.0
Further details — not scored
Size54 MB2 MB
Age rating4++4
DeveloperOleg ChumakovImran Pinjara

Customer experience

OBDII Trouble Codes

Written reviews42 reviews
Positive21.4%
Neutral4.8%
Negative73.8%

Cones Calculator

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

OBDII Trouble Codes

No in-app purchases

None

Cones Calculator

No in-app purchases

Questions

Is OBDII Trouble Codes free?
OBDII Trouble Codes costs $3.99, with no in-app purchases.
Is Cones Calculator free?
Cones Calculator costs $2.99, with no in-app purchases.
Do OBDII Trouble Codes or Cones Calculator have ads?
Neither OBDII Trouble Codes nor Cones Calculator shows ads.
Which is updated more often, OBDII Trouble Codes or Cones Calculator?
OBDII Trouble Codes ships an update every 25 months, and Cones Calculator every 73 months. Most recently, OBDII Trouble Codes was updated on October 14, 2026 and Cones Calculator on October 1, 2026.

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